Homework Answers
Ribosomes play an important role in the process of translation which involves taking instructions encoded in messenger ribonucleic acid (mRNA) and using these to assemble proteins from amino acids. So their main function is to manufacture proteins. The purpose of ribosomes is to serve as sites of translation.
Incoming mRNA binds to ribosomes to initiate the process of translation. In eukaryotes, a single strand of mRNA codes for only one protein, whereas in prokaryotes, an mRNA strand can include multiple genes and therefore code for multiple protein products. Hence ribosome binding affect the final level of protein produced from a DNA sequence.
So the answer of the above question is option (b) i.e. it determines how many proteins can be made from each mRNA.
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How does ribosome binding affect the final level of protein produced from a DNA sequence? Only...
One strand of a section of DNA isolated from E. coli reads: Suppose that an mRNA...
One strand of a section of DNA isolated from E. coli reads: Suppose that an mRNA is transcribed from this DNA using the complementary strand as a template. What will the sequence of the mRNA in this region be? What is the amino acid sequence of the proteins? Would the same proteins be made if the other strand of DNA served as template for transcription? Why or why not? If the T underlined in the above sequence was to go...
How does the Trp repressor prevents RNA polymerase from initiating transcription? by blocking the ribosome binding...
How does the Trp repressor prevents RNA polymerase from initiating transcription? by blocking the ribosome binding site by forming a loop in the operator that restricts the passage of the polymerase by binding to the polymerase to inhibit its catalytic activity by physically blocking the DNA binding site of RNA polymerase
21. Double helix 22. Repressor protein 23. Adenine 24. Ribosome.
21. Double helix22. Repressor protein23. Adenine24. Ribosome.25. Promoter26. Replication27. RNA Polymerase.28. CodonA. Enzyme that synthesizes RNAB. Organelle where proteins are assembledC. Complementary to either Thymine or UracilD. mRNA sequence that codes for one amino acidE. Shape of double stranded DNAF. Sequence of DNA that controls gene expressionG. binds an operator and stops gene expression in LAC operon by preventing RNA polymerase from binding gene and transcribing. H. Duplication of DNA in 5 phase of Interphase
HP1 is a DNA binding protein that interacts with a specific sequence (TGCTTATTC). You want to...
HP1 is a DNA binding protein that interacts with a specific
sequence (TGCTTATTC). You want to analyze, by a Dnase I
footprinting assay, the effect on DNA binding of the interaction
between HP1 and its 6 binding partner PA. In each assay, you
combine a radiolabeled fragment of DNA that binds to HP1 and a
specific combination of proteins. After incubation with DNase I,
each reaction mixture was resolved by gel electrophoresis, and then
exposed to film. The autoradiogram showing...
Once researchers identified DNA as the unit of inheritance, they asked how information was transferred from...
Once researchers identified DNA as the unit of inheritance, they asked how information was transferred from the DNA in the nucleus to the site of protein synthesis in the cytoplasm. What is the mechanism of information transfer in eukarotes? Transfer RNA takes information from DNA directly to a ribosome, where protein synthesis takes place. DNA from a single gene is replicated and transferred to the cytoplasm, where it serves as a template for protein synthesis. Proteins transfer information from the...
DNA DNA Replication: ONA Because DNA Is the ge m Tumes and heart e ine in...
DNA DNA Replication: ONA Because DNA Is the ge m Tumes and heart e ine in process called DNA curs in the nucleus of s acest FS Parent strand Parent strand Newly replicated DNA Newly replicated DNA- SA0 Daughter DNA molecule Daughter DNA molecule Figure 8.2: Overview of DNA replication and illustration of complementary base pairing. DNA must replicate before cell division so that each new daughter cell receives an exact copy of the parent DNA. 1. Replication begins when...
Question 1 Match the term with the best definition or description; most topics relate to the...
Question 1 Match the term with the best definition or description; most topics relate to the regulation of gene expression. General type of protein which will increase transcription rates when it attaches to a site A. Factor connected to a particular gene - B. Co-repressor C. Enhancer D. Promoter E. Structural F. Intron G. Activator H. Operator I. Basal transcription J. Glucocorticoid receptor K. Sigma factor L. Mediator M. Inducer N. TATA box O. Repressor The rates of mRNA produced...
Which of the following statements regarding the TATA binding protein (TBP) are true: Recognizes a sequence...
Which of the following statements regarding the TATA binding protein (TBP) are true: Recognizes a sequence that is similar are identical to 5'TATAAA3' Ο Ο Ο All are correct. It is considered a universal transcription factor It is a part of TEIID protein complex It binds to a consensus sequence The backbone of a DNA molecule is made up of phosphate groups made up of sugars made up of alternating phosphate and sugar groups Made up of alternating sugars and...
moose the correct alphabet (letter, noting that each and may have only ch answer can be...
moose the correct alphabet (letter, noting that each and may have only ch answer can be used more than once Answers a Eukaryotic mRNAS b.Prokaryotic mRNAs e . Transfer RNAS d. RNAs f. All RNAS e. Pre-mRNA the have a cloverleaf structure are synthesized by RNA polymerases the RNA that has the anti-codon are the template of genetic information during protein synthesis contains exons and introns is a structural component of the ribosome is the RNA that goes into the...
1. A biochemist is attempting to separate a DNA-binding protein (protein X) from other proteins in...
1. A biochemist is attempting to separate a DNA-binding protein (protein X) from other proteins in a solution. Only three other proteins (A, B, and C) are present. The proteins have the following properties: pl (isoelectric point) Size Mr Bind to DNA? protein A 7.4 protein B 3.8 protein C 7.9 protein X7.8 82,000 21,500 23,000 22,000 yes yes no yes What type of protein separation techniques might she use to protein X from the other proteins. Give a flow...
One strand of a section of DNA isolated from E. coli reads: Suppose that an mRNA is transcribed from this DNA using the complementary strand as a template. What will the sequence of the mRNA in this region be? What is the amino acid sequence of the proteins? Would the same proteins be made if the other strand of DNA served as template for transcription? Why or why not? If the T underlined in the above sequence was to go...
HP1 is a DNA binding protein that interacts with a specific
sequence (TGCTTATTC). You want to analyze, by a Dnase I
footprinting assay, the effect on DNA binding of the interaction
between HP1 and its 6 binding partner PA. In each assay, you
combine a radiolabeled fragment of DNA that binds to HP1 and a
specific combination of proteins. After incubation with DNase I,
each reaction mixture was resolved by gel electrophoresis, and then
exposed to film. The autoradiogram showing...
Once researchers identified DNA as the unit of inheritance, they asked how information was transferred from the DNA in the nucleus to the site of protein synthesis in the cytoplasm. What is the mechanism of information transfer in eukarotes? Transfer RNA takes information from DNA directly to a ribosome, where protein synthesis takes place. DNA from a single gene is replicated and transferred to the cytoplasm, where it serves as a template for protein synthesis. Proteins transfer information from the...
DNA DNA Replication: ONA Because DNA Is the ge m Tumes and heart e ine in process called DNA curs in the nucleus of s acest FS Parent strand Parent strand Newly replicated DNA Newly replicated DNA- SA0 Daughter DNA molecule Daughter DNA molecule Figure 8.2: Overview of DNA replication and illustration of complementary base pairing. DNA must replicate before cell division so that each new daughter cell receives an exact copy of the parent DNA. 1. Replication begins when...
Question 1 Match the term with the best definition or description; most topics relate to the regulation of gene expression. General type of protein which will increase transcription rates when it attaches to a site A. Factor connected to a particular gene - B. Co-repressor C. Enhancer D. Promoter E. Structural F. Intron G. Activator H. Operator I. Basal transcription J. Glucocorticoid receptor K. Sigma factor L. Mediator M. Inducer N. TATA box O. Repressor The rates of mRNA produced...
Which of the following statements regarding the TATA binding protein (TBP) are true: Recognizes a sequence that is similar are identical to 5'TATAAA3' Ο Ο Ο All are correct. It is considered a universal transcription factor It is a part of TEIID protein complex It binds to a consensus sequence The backbone of a DNA molecule is made up of phosphate groups made up of sugars made up of alternating phosphate and sugar groups Made up of alternating sugars and...
moose the correct alphabet (letter, noting that each and may have only ch answer can be used more than once Answers a Eukaryotic mRNAS b.Prokaryotic mRNAs e . Transfer RNAS d. RNAs f. All RNAS e. Pre-mRNA the have a cloverleaf structure are synthesized by RNA polymerases the RNA that has the anti-codon are the template of genetic information during protein synthesis contains exons and introns is a structural component of the ribosome is the RNA that goes into the...
1. A biochemist is attempting to separate a DNA-binding protein (protein X) from other proteins in a solution. Only three other proteins (A, B, and C) are present. The proteins have the following properties: pl (isoelectric point) Size Mr Bind to DNA? protein A 7.4 protein B 3.8 protein C 7.9 protein X7.8 82,000 21,500 23,000 22,000 yes yes no yes What type of protein separation techniques might she use to protein X from the other proteins. Give a flow...
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